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fd27c8dc6e
This is a spiritual follow-up to commit 8cff531520, which
added `G_TEST_OPTION_ISOLATE_DIRS` to the `gdbus-connection-flush` test
to avoid its D-Bus cookie lock file from being erroneously deleted by
other tests running in parallel.
The same failure mode could affect any of the other D-Bus tests which
connect to a bus. As an easy fix, enable `G_TEST_OPTION_ISOLATE_DIRS`
for all of them.
The only test it’s not (yet) enabled for is `gdbus-address-get-session`
as that messes around with `XDG_RUNTIME_DIR` to test finding the session
bus. It might be possible to use `G_TEST_OPTION_ISOLATE_DIRS` with it,
but that would take longer than I have right now.
In any case, the more tests (which try to connect to a bus) that this is
enabled for, the lower the chances of spurious test failure due to them
conflicting over shared resources.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
261 lines
7.4 KiB
C
261 lines
7.4 KiB
C
/* Test case for GNOME #651133
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*
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* Copyright (C) 2008-2010 Red Hat, Inc.
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* Copyright (C) 2011 Nokia Corporation
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*
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* SPDX-License-Identifier: LGPL-2.1-or-later
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General
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* Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*
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* Author: Simon McVittie <simon.mcvittie@collabora.co.uk>
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*/
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#include <config.h>
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#include <unistd.h>
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#include <string.h>
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#include <gio/gio.h>
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#include "gdbus-tests.h"
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#ifdef HAVE_DBUS1
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# include <dbus/dbus-shared.h>
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#else
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# define DBUS_INTERFACE_DBUS "org.freedesktop.DBus"
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# define DBUS_PATH_DBUS "/org/freedesktop/DBus"
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# define DBUS_SERVICE_DBUS "org.freedesktop.DBus"
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# define DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER 1
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# define DBUS_RELEASE_NAME_REPLY_RELEASED 1
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#endif
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#define MY_NAME "com.example.Test.Myself"
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/* This many threads create and destroy GDBusProxy instances, in addition
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* to the main thread processing their NameOwnerChanged signals.
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* N_THREADS_MAX is used with "-m slow", N_THREADS otherwise.
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*/
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#define N_THREADS_MAX 10
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#define N_THREADS 2
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/* This many GDBusProxy instances are created by each thread. */
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#define N_REPEATS 100
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/* The main thread requests/releases a name this many times as rapidly as
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* possible, before performing one "slow" cycle that waits for each method
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* call result (and therefore, due to D-Bus total ordering, all previous
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* method calls) to prevent requests from piling up infinitely. The more calls
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* are made rapidly, the better we reproduce bugs.
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*/
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#define N_RAPID_CYCLES 50
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static GMainLoop *loop;
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static gpointer
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run_proxy_thread (gpointer data)
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{
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GDBusConnection *connection = data;
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int i;
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g_assert (g_main_context_get_thread_default () == NULL);
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for (i = 0; i < N_REPEATS; i++)
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{
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GDBusProxy *proxy;
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GError *error = NULL;
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GVariant *ret;
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if (g_test_verbose ())
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g_printerr (".");
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proxy = g_dbus_proxy_new_sync (connection,
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G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START |
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G_DBUS_PROXY_FLAGS_DO_NOT_LOAD_PROPERTIES,
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NULL,
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MY_NAME,
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"/com/example/TestObject",
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"com.example.Frob",
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NULL,
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&error);
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g_assert_no_error (error);
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g_assert (proxy != NULL);
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g_dbus_proxy_set_default_timeout (proxy, G_MAXINT);
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ret = g_dbus_proxy_call_sync (proxy, "StupidMethod", NULL,
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G_DBUS_CALL_FLAGS_NO_AUTO_START, -1,
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NULL, NULL);
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/*
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* we expect this to fail - if we have the name at the moment, we called
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* an unimplemented method, and if not, there was nothing to call
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*/
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g_assert (ret == NULL);
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/*
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* this races with the NameOwnerChanged signal being emitted in an
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* idle
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*/
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g_object_unref (proxy);
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}
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g_main_loop_quit (loop);
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return NULL;
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}
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static void release_name (GDBusConnection *connection, gboolean wait);
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static void
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request_name_cb (GObject *source,
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GAsyncResult *res,
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gpointer user_data)
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{
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GDBusConnection *connection = G_DBUS_CONNECTION (source);
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GError *error = NULL;
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GVariant *var;
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GVariant *child;
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var = g_dbus_connection_call_finish (connection, res, &error);
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g_assert_no_error (error);
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child = g_variant_get_child_value (var, 0);
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g_assert_cmpuint (g_variant_get_uint32 (child),
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==, DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER);
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release_name (connection, TRUE);
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g_variant_unref (child);
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g_variant_unref (var);
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}
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static void
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request_name (GDBusConnection *connection,
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gboolean wait)
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{
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g_dbus_connection_call (connection,
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DBUS_SERVICE_DBUS,
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DBUS_PATH_DBUS,
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DBUS_INTERFACE_DBUS,
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"RequestName",
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g_variant_new ("(su)", MY_NAME, 0),
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G_VARIANT_TYPE ("(u)"),
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G_DBUS_CALL_FLAGS_NONE,
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-1,
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NULL,
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wait ? request_name_cb : NULL,
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NULL);
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}
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static void
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release_name_cb (GObject *source,
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GAsyncResult *res,
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gpointer user_data)
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{
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GDBusConnection *connection = G_DBUS_CONNECTION (source);
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GError *error = NULL;
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GVariant *var;
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GVariant *child;
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int i;
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var = g_dbus_connection_call_finish (connection, res, &error);
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g_assert_no_error (error);
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child = g_variant_get_child_value (var, 0);
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g_assert_cmpuint (g_variant_get_uint32 (child),
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==, DBUS_RELEASE_NAME_REPLY_RELEASED);
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/* generate some rapid NameOwnerChanged signals to try to trigger crashes */
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for (i = 0; i < N_RAPID_CYCLES; i++)
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{
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request_name (connection, FALSE);
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release_name (connection, FALSE);
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}
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/* wait for dbus-daemon to catch up */
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request_name (connection, TRUE);
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g_variant_unref (child);
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g_variant_unref (var);
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}
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static void
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release_name (GDBusConnection *connection,
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gboolean wait)
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{
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g_dbus_connection_call (connection,
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DBUS_SERVICE_DBUS,
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DBUS_PATH_DBUS,
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DBUS_INTERFACE_DBUS,
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"ReleaseName",
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g_variant_new ("(s)", MY_NAME),
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G_VARIANT_TYPE ("(u)"),
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G_DBUS_CALL_FLAGS_NONE,
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-1,
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NULL,
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wait ? release_name_cb : NULL,
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NULL);
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}
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static void
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test_proxy (void)
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{
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GDBusConnection *connection;
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GError *error = NULL;
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GThread *proxy_threads[N_THREADS_MAX];
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int i;
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int n_threads;
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if (g_test_slow ())
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n_threads = N_THREADS_MAX;
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else
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n_threads = N_THREADS;
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session_bus_up ();
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loop = g_main_loop_new (NULL, TRUE);
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connection = g_bus_get_sync (G_BUS_TYPE_SESSION,
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NULL,
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&error);
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g_assert_no_error (error);
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request_name (connection, TRUE);
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for (i = 0; i < n_threads; i++)
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{
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proxy_threads[i] = g_thread_new ("run-proxy",
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run_proxy_thread, connection);
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}
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g_main_loop_run (loop);
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for (i = 0; i < n_threads; i++)
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{
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g_thread_join (proxy_threads[i]);
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}
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g_object_unref (connection);
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g_main_loop_unref (loop);
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/* TODO: should call session_bus_down() but that requires waiting
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* for all the outstanding method calls to complete...
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*/
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if (g_test_verbose ())
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g_printerr ("\n");
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}
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int
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main (int argc,
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char *argv[])
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{
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g_test_init (&argc, &argv, G_TEST_OPTION_ISOLATE_DIRS, NULL);
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g_test_dbus_unset ();
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g_test_add_func ("/gdbus/proxy/vs-threads", test_proxy);
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return g_test_run();
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}
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